“Design:
The IM-04 is quiet bulky, but it is rounded off in the inner side, and with the short nozzles I have found no fitting issues whatsoever. The body is shinny with pitch black color, and a gold logo of Audio Technica. The shells are made of hard plastic, and of what kind of quality and durability is up to guesses, but I will have to go with "Japan made" and say...” --Whitigir

“This is my first review for a product so I maybe lacking details in some areas or using the wrong terms. Forgive me for that. I did buy these in Japan at a department store called Joshin so I don't have the technical details but you can find them here http://www.audio-technica.co.jp/atj/show_model.php?modelId=2305. In terms of USD I think I payed roughly $65 and they were definitely worth...” --purpledrank

“Color! Because I feel in the mood for it. No, not really, this is just for the comparison.
So, Red, & Green?
Red - Not For Me.
Green - Solid, & something I personally like.
Comparison is going to be the first part of this review.
IM50 vs IM02
IM50
- Comfort of tips, Thick Mids(Sometimes so thick sounding it they become congestive), Shell can be hard to fit in some...” --whitemass

“Got this earphones for the sole purpose of working out/biking. Tested out multiple sports headsets (similarly priced), from sennheiser and bose. They tend to sound better, especially than the adidas sennheiser which sound pretty bad for the money. Great bass and clear mids and highs (considering it is bass-centric).
It is not neutral by any stretch, but you have to remember they...” --BenKatz